Guardrail base



FIG. 1 is a top perspective view of the guardrail base.

FIG. 2 is a bottom perspective view of the guardrail base.

FIG. 3 is a top plan view of the guardrail base.

FIG. 4 is a bottom plan view of the guardrail base.

FIG. 5 is a left side perspective view of the guardrail base.

FIG. 6 is a right side perspective view of the guardrail base.

FIG. 7 is a rear elevation view of the guardrail base; and,

FIG. 8 is a front elevation view of the guardrail base. 

CLAIM The ornamental design for a guardrail base, as shown and described. 